" Yoon Suk-ho (born 4 June1957) is a SouthKorean director. He was the director of four TV series produced by KBS that are sometimes collectively referred to as Endless Love, each containing the name of one of the four seasons in its title. The series were immensely popular throughout Asia, especially Winter Sonata, and intensified a surge in popularity of Korean popular culture known as Hallyu, or the Korean Wave."